diff --git a/taiga/hooks/gitlab/event_hooks.py b/taiga/hooks/gitlab/event_hooks.py
index 5b4b4006..e7ada033 100644
--- a/taiga/hooks/gitlab/event_hooks.py
+++ b/taiga/hooks/gitlab/event_hooks.py
@@ -40,7 +40,7 @@ class IssuesEventHook(BaseGitLabEventHook, BaseNewIssueEventHook):
 
     def get_data(self):
         description = self.payload.get('object_attributes', {}).get('description', None)
-        project_url = self.payload.get('repository', {}).get('homepage', None)
+        project_url = self.payload.get('repository', {}).get('homepage', "")
         user_name = self.payload.get('user', {}).get('username', None)
         return {
             "number": self.payload.get('object_attributes', {}).get('iid', None),
@@ -59,7 +59,7 @@ class IssueCommentEventHook(BaseGitLabEventHook, BaseIssueCommentEventHook):
 
     def get_data(self):
         comment_message = self.payload.get('object_attributes', {}).get('note', None)
-        project_url = self.payload.get('repository', {}).get('homepage', None)
+        project_url = self.payload.get('repository', {}).get('homepage', "")
         number = self.payload.get('issue', {}).get('iid', None)
         user_name = self.payload.get('user', {}).get('username', None)
         return {
diff --git a/taiga/hooks/gogs/event_hooks.py b/taiga/hooks/gogs/event_hooks.py
index b392afe2..399fa960 100644
--- a/taiga/hooks/gogs/event_hooks.py
+++ b/taiga/hooks/gogs/event_hooks.py
@@ -37,10 +37,10 @@ class PushEventHook(BaseGogsEventHook, BasePushEventHook):
     def get_data(self):
         result = []
         commits = self.payload.get("commits", [])
-        project_url = self.payload.get("repository", {}).get("html_url", None)
+        project_url = self.payload.get("repository", {}).get("html_url", "")
 
         for commit in filter(None, commits):
-            user_name = commit.get('author', {}).get('username', None)
+            user_name = commit.get('author', {}).get('username', "")
             result.append({
                 "user_id": user_name,
                 "user_name": user_name,